Experiments Plan Check

{
  "data": {
    "chargedAmount": "10005",
    "inputHash": "sha256:ad68ff5337f833b8117aac34da5833a972784a5a1db827b58dba0289f…",
    "limitations": [
      "Public or synthetic inputs only. Caller labels are declarations,…"
    ],
    "productId": "astrology-experiment-plan-check",
    "result": {
      "assessedAgainst": "maha-structured-low-stakes-plan/0.1",
      "conventionVerified": false,
      "issues": [],
      "note": "Times, predictor, convention and plan digest are caller declarat…",
      "powerAssessed": false,
      "predictionValidated": false,
      "randomizationVerified": false,
      "registered": false,
      "state": "declarations-complete",
      "trustedTimestamp": false
    },
    "resultHash": "sha256:a4b095df5a02a483f965f888593cc54185b6a1823e8466b3a61bc3a78…",
    "sourceContractAmount": "48500",
    "version": "maha-legacy-adapter/1"
  },
  "proof": {
    "settlement_id": "0x00000000000000000000000000000000000000000000000000000000000000…"
  },
  "success": true
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://www.mahastrategies.com/api/v1/celestial/experiments/plan-check' \
  -H 'content-type: application/json' \
  --data-raw '{"activity":"synthetic-task","analysis":{"metric":"mean-difference","missingData":"report-and-exclude","multipleTesting":"single-primary-outcome","planDigest":"sha256:3333333333333333333333333333333333333333333333333333333333333333","stoppingRule":"fixed-sample"},"assessedAtUtc":"2026-09-09T10:00:00.000Z","comparator":"shuffled-timing","conventionVersion":"declared-convention-v1","dataClass":"synthetic","direction":"higher","endUtc":"2026-09-11T10:00:00.000Z","outcomeId":"puzzle-score","predictorId":"declared-predictor-1","sampleSize":40,"startUtc":"2026-09-10T10:00:00.000Z"}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://www.mahastrategies.com/api/v1/celestial/experiments/plan-check' \
  -H 'content-type: application/json' \
  --data-raw '{"activity":"synthetic-task","analysis":{"metric":"mean-difference","missingData":"report-and-exclude","multipleTesting":"single-primary-outcome","planDigest":"sha256:3333333333333333333333333333333333333333333333333333333333333333","stoppingRule":"fixed-sample"},"assessedAtUtc":"2026-09-09T10:00:00.000Z","comparator":"shuffled-timing","conventionVersion":"declared-convention-v1","dataClass":"synthetic","direction":"higher","endUtc":"2026-09-11T10:00:00.000Z","outcomeId":"puzzle-score","predictorId":"declared-predictor-1","sampleSize":40,"startUtc":"2026-09-10T10:00:00.000Z"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.010005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.010005" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.010005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.mahastrategies.com%2Fapi%2Fv1%2Fcelestial%2Fexperiments%2Fplan-check&method=POST
const res = await pay("https://www.mahastrategies.com/api/v1/celestial/experiments/plan-check", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "activity": "synthetic-task",
    "analysis": {
      "metric": "mean-difference",
      "missingData": "report-and-exclude",
      "multipleTesting": "single-primary-outcome",
      "planDigest": "sha256:3333333333333333333333333333333333333333333333333333333333333333",
      "stoppingRule": "fixed-sample"
    },
    "assessedAtUtc": "2026-09-09T10:00:00.000Z",
    "comparator": "shuffled-timing",
    "conventionVersion": "declared-convention-v1",
    "dataClass": "synthetic",
    "direction": "higher",
    "endUtc": "2026-09-11T10:00:00.000Z",
    "outcomeId": "puzzle-score",
    "predictorId": "declared-predictor-1",
    "sampleSize": 40,
    "startUtc": "2026-09-10T10:00:00.000Z"
  }),
});
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.010005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.010005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://www.mahastrategies.com/api/v1/celestial/experiments/plan-check",
        json={
            "activity": "synthetic-task",
            "analysis": {
                "metric": "mean-difference",
                "missingData": "report-and-exclude",
                "multipleTesting": "single-primary-outcome",
                "planDigest": "sha256:3333333333333333333333333333333333333333333333333333333333333333",
                "stoppingRule": "fixed-sample",
            },
            "assessedAtUtc": "2026-09-09T10:00:00.000Z",
            "comparator": "shuffled-timing",
            "conventionVersion": "declared-convention-v1",
            "dataClass": "synthetic",
            "direction": "higher",
            "endUtc": "2026-09-11T10:00:00.000Z",
            "outcomeId": "puzzle-score",
            "predictorId": "declared-predictor-1",
            "sampleSize": 40,
            "startUtc": "2026-09-10T10:00:00.000Z",
        },
    )
    print(res.status_code, res.text)